1999/09/06 by Gianaurelio Cuniberti, Andrea Fechner, A. Fechner +3
Engineering · Physics and Astronomy · #Molecular Junctions and Nanostructures #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall #cond-mat.str-el
paper · pdf · doi:10.1209/epl/i1999-00115-8
published as Europhysics Letters 48, 66-72 (1999) · 7 pages, EURO-TeX, 3 figures, to appear in Europhysics Letters
arxiv created 1999/09/06 · openalex publication_date 1999/10/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
The DC current-voltage characteristics induced by a driving electric field with frequency Ω of a one-dimensional electron channel with a tunnel barrier is calculated. Electron-electron interaction of finite range is taken into account. For intermediate interaction strengths, the non-linear differential conductance shows cusp-like minima at bias voltages m ℏΩ/ e ( m integer) that are a consequence of the finite non-zero range of the interaction but are independent of the shape of the driving electric field. However, the frequency-scaling of the photo-induced current shows a cross-over between Ω −1 and Ω −2 , and depends on the spatial shape of the driving field and the range of the interaction.